Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

General Discussion

Skittles

(172,200 posts)

7. Mac did you see this article

Reply to DemoTex (Original post)

Mon Apr 14, 2014, 12:32 AM

Apr 2014

The hummingbird doesn't flap its wings up and down, like other birds. Its wings oscillate in a circular motion, forming a figure eight, and the bird gets lift both from its downstroke -- like all birds -- but also from its upstroke.

As they fly, the wings form a vortex, sort of like a whirlpool in air, on the leading edge of their wings thus giving them lift on both strokes.

http://abcnews.go.com/Technology/clever-hummingbird-tortures-scientists/story?id=23303261

Edit history

Please sign in to view edit histories.

Recommendations

0 members have recommended this reply (displayed in chronological order):

49 replies

= new reply since forum marked as read

Highlight:

Too good not to share: from my 2014 fire lookout gig [View all] DemoTex Apr 2014 OP

How beautiful! KT2000 Apr 2014 #1

How rare and beautiful! I've never seen a hummingbird nesting. northoftheborder Apr 2014 #35

I was going to say I've never seen a hummingbird resting Thor_MN Apr 2014 #44

Great shots, my dear DemoTex! CaliforniaPeggy Apr 2014 #2

What city is that in the first picture? Vashta Nerada Apr 2014 #3

Tucson, indeed. DemoTex Apr 2014 #6

You get all the fun nadinbrzezinski Apr 2014 #4

Way too cool! Love the bird pic! MADem Apr 2014 #5

Mac did you see this article Skittles Apr 2014 #7

Beautiful pictures - thank you for sharing them Samantha Apr 2014 #8

Doing the Kerouac thing, eh! ChazInAz Apr 2014 #9

Visit DemoTex Apr 2014 #14

wow! what's your hardware? stg81 Apr 2014 #10

Canon 5D MK3 w/14mm WA DemoTex Apr 2014 #16

nice! no graininess with that high ISO stg81 Apr 2014 #19

I am taking a moment to reply truedelphi Apr 2014 #37

You have a great eye! shanti Apr 2014 #11

Dayum, these are wonderful shots, DemoTex! calimary Apr 2014 #12

k&r... spanone Apr 2014 #13

Wow. Warren DeMontague Apr 2014 #15

Wow. Keep those pictures coming, DemoTex! SunSeeker Apr 2014 #17

I'm so looking forward to more of your photos this year. Sissyk Apr 2014 #18

amazing images, as always tomm2thumbs Apr 2014 #20

Thanks for posting. Keep your reports going. Love them. JDPriestly Apr 2014 #21

Always look forward to your reports, and especially your pictures. longship Apr 2014 #22

KnR Always look forward to your reports and photos Hekate Apr 2014 #23

Magnificent malaise Apr 2014 #24

New year new digs? hootinholler Apr 2014 #25

awesome madokie Apr 2014 #26

Wow!! DarthDem Apr 2014 #27

Those pictures are amazing..... a kennedy Apr 2014 #28

You on top of A mountain? B Calm Apr 2014 #29

WOW! Lady Freedom Returns Apr 2014 #30

My Father did that in the 50's Red State Rebel Apr 2014 #31

Same here. In the Idaho panhandle JimDandy Apr 2014 #38

Being moved to a station near Tucson Warpy Apr 2014 #32

keep them beautiful pics comin Tex! dionysus Apr 2014 #33

Thank you for the lovely pictures n/t sarge43 Apr 2014 #34

Wow! SalviaBlue Apr 2014 #36

If I thought I could handle the job Aerows Apr 2014 #39

Job Calista241 Apr 2014 #40

Hope the conditions favor some good blood moon shots! Blue Owl Apr 2014 #41

Beautiful! A question for you... SaveOurDemocracy Apr 2014 #42

My husband is sooooo jealous! He is originally from Tucson Nd whenever he goes home Liberal In Red State Apr 2014 #43

Stunning! obxhead Apr 2014 #45

DemoTex, you have the coolest job of anybody I know or know of! hatrack Apr 2014 #46

thank you for those beautiful pics--especially the nesting hummer!! looking forward to more niyad Apr 2014 #47

So DU is more than adequately covered now Iwillnevergiveup Apr 2014 #48

And Flying Squirrel's DUzy Awards threads on Fridays pinboy3niner Apr 2014 #49